.userbox
{
    text-align: center;
    white-space: nowrap;
    height: 100%;
    min-height: 100%;
    margin-top: -50px;
    /* min-height: 720px; */
}

.userbox::before
{
    content: '';
    display: inline-block;
    height: 100%;
    vertical-align: middle;
    margin-right: -.25em;    
}

.signinbox
{
    padding: 0;
    display: inline-block;
    vertical-align: middle;
    text-align: center;
    white-space: normal;
    margin: auto;
    width: 270px;
    min-height: 380px;
}
.logoimage
{
margin-bottom: 20px;    
}
.chioceSign
{
    width: 100%;
    margin-bottom: 10px;
    font-size: 18px;
    text-align: center;
    
}
.navs-slider{
    position: relative;
display: inline-block;
}
.active{
    opacity: 1;
    -ms-filter: "alpha(Opacity=100)";
    color: #00aeef;
    border-bottom: 2px solid #00aeef;
}
.yw-defalut
{
  opacity: 1;
  -ms-filter: "alpha(Opacity=100)";
  color: inherit;
}
.navs-slider a{
    float: left;
    width: 4em;
    line-height: 35px;
    opacity: .7;
    -ms-filter: "alpha(Opacity=70)";
    -webkit-transition: opacity .15s,color .15s;
    transition: opacity .15s,color .15s;
    font-size: 18px;
    text-align: center;

}
.navs-slider a:focus{
    text-decoration: none;
    outline: none;
  }

.yw-footer
{
  text-align: center;
  width: 100%;
}
.yw-footer .dot{
  margin: 0 3px;
  color: #aebdc9;
}
.yw-footer span{
  margin-left: 20px;
}
.yw-footer a{
  color: inherit;
}
.wrapper {
z-index: -1;
  opacity: 0.8;
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;

}


.bg-bubbles {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}
.bg-bubbles li {
  position: absolute;
  list-style: none;
  display: block;
  width: 40px;
  height: 40px;
  background-color: rgba(179, 179, 179, 0.733);
  bottom: -160px;
  -webkit-animation: square 25s infinite;
  animation: square 25s infinite;
  -webkit-transition-timing-function: linear;
  transition-timing-function: linear;
  animation-direction:alternate;
  -webkit-animation-direction:alternate;
}
.bg-bubbles li:nth-child(1) {
  left: 10%;
  width: 170px;
  height:170px;
}
.bg-bubbles li:nth-child(2) {
  left: 20%;
  width: 80px;
  height: 80px;
  -webkit-animation-delay: 6s;
          animation-delay: 6s;
  -webkit-animation-duration: 17s;
          animation-duration: 17s;
}
.bg-bubbles li:nth-child(3) {
  left: 25%;
  -webkit-animation-delay: 4s;
          animation-delay: 4s;
}
.bg-bubbles li:nth-child(4) {
  left: 40%;
  width: 60px;
  height: 60px;
  -webkit-animation-delay: 24s;
  animation-delay: 24s;
  -webkit-animation-duration: 22s;
          animation-duration: 22s;
  background-color: rgba(179, 179, 179, 0.44);
}
.bg-bubbles li:nth-child(5) {
  left: 70%;
  -webkit-animation-duration: 18s;
  animation-duration: 18s;
}
.bg-bubbles li:nth-child(6) {
  left: 80%;
  width: 120px;
  height: 120px;
  -webkit-animation-delay: 16s;
          animation-delay: 16s;
  background-color: rgba(179, 179, 179, 0.75);
}
.bg-bubbles li:nth-child(7) {
  left: 32%;
  width: 160px;
  height: 160px;
  -webkit-animation-delay: 20s;
          animation-delay: 20s;
          -webkit-animation-duration:45s;
          animation-duration: 45s;
}
.bg-bubbles li:nth-child(8) {
  left: 55%;
  width: 20px;
  height: 20px;
  -webkit-animation-delay: 2s;
          animation-delay: 2s;
  -webkit-animation-duration: 40s;
          animation-duration: 40s;
}
.bg-bubbles li:nth-child(9) {
  left: 25%;
  width: 10px;
  height: 10px;
  -webkit-animation-delay: 8s;
          animation-delay: 8s;
  -webkit-animation-duration:30s;
          animation-duration: 30s;
  background-color: rgba(179, 179, 179, 0.66);
}
.bg-bubbles li:nth-child(10) {
  left: 90%;
  width: 160px;
  height: 160px;
  -webkit-animation-delay: 10s;
          animation-delay: 10s;
}

.bg-bubbles li:nth-child(11) {
    left: 36%;
    width: 88px;
    height: 88px;
    -webkit-animation-delay: 14s;
            animation-delay: 14s;
            -webkit-animation-duration:33s;
            animation-duration: 33s;
  }

  .bg-bubbles li:nth-child(12) {
    left: 77%;
    width: 60px;
    height: 60px;
    -webkit-animation-delay: 18s;
            animation-delay: 18s;
  }

  .bg-bubbles li:nth-child(13) {
    left: 5%;
    width: 100px;
    height: 100px;
    -webkit-animation-delay: 3s;
            animation-delay: 3s;
  }

  .bg-bubbles li:nth-child(14) {
    left: 55%;
    width: 60px;
    height: 60px;
    -webkit-animation-delay: 2s;
            animation-delay: 2s;
  }

  .bg-bubbles li:nth-child(15) {
    left: 35%;
    width: 100px;
    height: 100px;
    -webkit-animation-delay: 1s;
            animation-delay: 1s;
  }
.bg-bubbles li:nth-child(15) {
    left: 35%;
    width: 100px;
    height: 100px;
    -webkit-animation-delay: 1s;
            animation-delay: 1s;
  }




@-webkit-keyframes square {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  100% {
    -webkit-transform: translateY(-1300px) rotate(180deg);
    transform: translateY(-1300px) rotate(180deg);
  }
}
@keyframes square {
  0% {
    -webkit-transform: translateY(0);
            transform: translateY(0);
  }
  100% {
    -webkit-transform: translateY(-1300px) rotate(180deg);
            transform: translateY(-1300px) rotate(180deg);
  }
}
.userbox input
{
background-color: transparent;
}

.yuanwen-tip
{
    margin-bottom: 20px;
    color: inherit;
}
.edu-menu-tree
{
  width: 35%;
  margin-left: 5%;
  float: right;
  border: #e8e7e7 1px solid;
  position: relative;
}
.menu-dot
{
  margin-left: 5px;
}